SEO and speed enhancements on existing site

We have an existing site (http://www.evenwheelsolutions.com/) built on Concrete5. We have not been happy with the speed of the site and are looking for help from a knowledgeable C5 developer who can help increase ySlow and PageSpeed scores as well as assist with SEO and other search engine rankings. Thanks.

First off, you have several jquery plugins that cannot be found (easing, fancy box and cloud zoom), a couple of images and whatever an "htc" file is. Clear up these 404 errors and you get back about 4 seconds.

Next. find your .htaccess file and paste the following in before any rewrite rules (be sure to expand the code window "View entire code block." so that you can copy all of the code)

I understand what this htaccess does, but there is no other way to control the refresh process in the users browser than renaming the file right? (e.g. if customer says "please make the main area 10px wider", he won't see it). Or do I miss something?

@DtotheOR
The .htaccess changes have nothing to do with Miser. It is server configuration to enable compression and header expiry info (if the modules are installed that is). It should be applied (or something similar) whether you use Miser or not.

If one doesn't exist, you can just create one (in your root). you should already have it if you use "pretty URLS" since that is where it is defined.

Thank you all for the responses. Unfortunately, I'm a complete newbie and don't know how to clean up the missing JS files. We had a designer create the site for us, so these things are a bit unknown to me. Any guidance would be appreciated!

You best bet is to contact the designer and tell him that his Theme is missing some files. Get him to FTP into the site and make the changes. It should only take him two minutes and you paid for a working Theme, right?

@55webdesign
Indeed. However, there are only two (other?) elements that cause a browser to download sequentially rather than parallel. @imports and font files (eot). Miser finds the CSS for @imports and merges it into the file that references it (i.e removes the sequential bottle-neck). It can't do much about eot files, but I was wondering if it should also target these htc files and see if it can do something about them too.

Hi all,
Thanks for the tips. Phallanx, I was able to make your htaccess changes. Unfortunately my designer has gone MIA and become unresponsive, so I have not been able to resolve the missing/bad links in the code.

Would anyone here be able to help with that for a small fee? I am clueless on how to find and fix the missing resources.